1217844 - Visiting Addictinggames will result in very low browser performance or hangs

Status: RESOLVED WORKSFORME

(Core Graveyard :: Plug-ins, defect)

Description

[Bogdan Maris, Desktop QA]

Attachment: Screenshot showing the CPU usage

Affected builds:
- Firefox 42 beta 9 (hang)
- latest Nightly (very low browser performance)

Affected OS's:
- Mac OS X 10.11
- Windows 10 64-bit

STR:
1. Start Firefox
2. Visit http://www.addictinggames.com/
3. Select a game and wait

Expected results: Games are played with no issues without affecting Firefox performance.

Actual results: Website affects Firefox performance on Nightly and hang Firefox 42 beta and lower.

Notes:
- This is not a recent regression, it affects Firefox 40.0.2 as well
- Screenshot attached with the values CPU usage from Activity Monitor (AM).
- After 2-3 minutes both processes appear in AM as Not Responding.

Comment 1

[Mae R. Brandt]

Visit http://spidermangaming.com/ website affects Firefox performance on Nightly and hang Firefox 50 beta and lower. After 1-2 minutes appear as Not Responding.

Comment 2

[Wayne Mery (:wsmwk)]

(In reply to Bogdan Maris [:bogdan_maris], Release Desktop QA from comment #0)

...
STR:

1. Start Firefox
2. Visit http://www.addictinggames.com/
3. Select a game and wait

Doesn't reproduce for me on Mac Firefox 84
Can you still reproduce?

Comment 3

[Alexandru Trif, Desktop QA [:atrif]]

(In reply to Wayne Mery (:wsmwk) from comment #2)

(In reply to Bogdan Maris [:bogdan_maris], Release Desktop QA from comment #0)

...
STR:

1. Start Firefox
2. Visit http://www.addictinggames.com/
3. Select a game and wait

Doesn't reproduce for me on Mac Firefox 84
Can you still reproduce?

We retested with Firefox 78.5.0esr(20201110001500) on macOS 10.11 and with 85.0a1(20201206213246) and 84.0b8(20201203211213) on Windows 10x64 and macOS 10.11 and no hangs or Not Responding message appeared.
I think it's safe to close this as WFM because the issue is not reproducing anymore. Thank you!